Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

76°F

24°C

Humidity 61%
Wind Speed S 5 mph
Barometer 30.36 in (1028.3 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Sep 10:55 am EDT
Extended Forecast for

2 Miles SSE Mount Vernon VA

  • Today

    Today: Sunny, with a high near 84. South wind around 6 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. South wind around 5 mph.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88. South wind around 6 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 74. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 85. North wind 6 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Slight Chance
    Showers then
    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 84. South wind around 6 mph.
Tonight
Mostly clear, with a low around 69. South wind around 5 mph.
Thursday
Mostly sunny, with a high near 88. South wind around 6 mph.
Thursday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 85. North wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Mostly cloudy, with a low around 67.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Monday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Mount Vernon VA
 38.69°N 77.09°W (Elev. 3 ft)
10:53 am EDT Sep 16, 2026
11am EDT Sep 16, 2026-6pm EDT Sep 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database